Flowserve manufactures cast steel ball valves designed for district heating installations, heat transfer piping, oil lines and oxygen-free water lines. Flowserve steel ball valves feature an all-welded body fitted with carbon-reinforced Teflon seals for long lasting protection from chemicals and other impurities. Flowserve cast steel ball valves require no adjustment or lubrication.

Superior Valve Co. offers the Apollo line of steel and alloy ball valves. These steel ball valves include flanged, socket weld, butt weld and threaded models in a variety of sizes from 1/4" up to 12". Apollo steel ball valves meet ISO 9001 specifications and are used in a wide array of industrial applications.